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3 years ago

Please help me

Mathematics

1 answer:

Sergeeva-Olga [200]3 years ago

5 0

Answer:

Step-by-step explanation:

rate of Bumblebee=38/14=19/7=1 5/7 flowers /min

rate of Butterfly=21/7=3 flowers/min

so Butterfly is visiting the flowers at a faster rate.

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Shawna earns $10 per hour babysitting her neighbors. One Saturday she got Jill to assist her for 40% of everything she earns. Th

Nastasia [14]

Answer:10 dollars

Step-by-step explanation:because i say so

3 0

3 years ago

Are the expressions 8a - 3b - (2a + 4b) and 6a + b equivalent?

Margaret [11]

Answer:

No.

Step-by-step explanation:

Let's start by simplifying the first expression:

$8a-3b-(2a+4b)$

Remove the parentheses:

$8a-3b-(2a)-(4b)\\8a-3b-2a-4b$

Combine like terms:

$8a-2a-3b-4b\\6a-7b$

$6a-7b\neq 6a+b$ (Assuming that none of the variables are equivalent to 0)

3 0

2 years ago

If Janet scored an 85% on her test she answered 34 questions correctly how many questions were on the test

Wittaler [7]

40 questions. You set up a proportion, mutiply 34 by a 100 and get 3400. Then you divide 3400 by 85 and you get ur answer. You could also try guessing by putting in random values you think are the whole number and multiplying them by 0.85. So if you guess 44 is the whole and try checking it by multiplying it by .85 and get a value thats higher than the value the percentage is equal to you try another smaller value. So if 44 doesn't work you can try 40. 40 times .85 is 34 so your answer of 40 questions is correct.

7 0

3 years ago

(Giving Branliest)

REY [17]

Answer:

106.68 cm

Step-by-step explanation:

Change ft to inches

3.5 ft * 12 inches / 1 ft = 42 inches

Change inches to cm

42 inches * 2.54 cm/ inch =106.68 cm

8 0

3 years ago

Read 2 more answers

Arrange the pairs of points in increasing order of the slopes of the lines joining them. (15, 30) and (20, 40)

gavmur [86]

Answer: m1 = 0.5

M2= 0.375

M3 = 2.25

M4 = 3.0

M5 = 13.5

M6 = 0.285

M7 = 7.0

Step-by-step explanation:

(20,40)-(15,30)=(5,10), m1=5/10=0.5

(18,48)-(12,32)=(6,16), m2=3/8=0.375

(72,32)-(27,12)=(45,20), m3=9/4=2.25

(60,20)-(45,15)=(15,5), m4=3.0

(243,18)-(27,2)=(216,16), m5=27/2=13.5

(24,84)-(18,63)=(6,21), m6=2/7=0.285...

(84,12)-(63,9)=(21,3), m7=7.0

4 0

3 years ago